WO2021141167A1 - Système de torche de type à apport par poussée-traction - Google Patents

Système de torche de type à apport par poussée-traction Download PDF

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Publication number
WO2021141167A1
WO2021141167A1 PCT/KR2020/000466 KR2020000466W WO2021141167A1 WO 2021141167 A1 WO2021141167 A1 WO 2021141167A1 KR 2020000466 W KR2020000466 W KR 2020000466W WO 2021141167 A1 WO2021141167 A1 WO 2021141167A1
Authority
WO
WIPO (PCT)
Prior art keywords
welding
welding wire
push
supply
guide
Prior art date
Application number
PCT/KR2020/000466
Other languages
English (en)
Korean (ko)
Inventor
안연주
Original Assignee
주식회사 로봇밸리
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 로봇밸리 filed Critical 주식회사 로봇밸리
Priority to PCT/KR2020/000466 priority Critical patent/WO2021141167A1/fr
Publication of WO2021141167A1 publication Critical patent/WO2021141167A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/095—Monitoring or automatic control of welding parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/26—Accessories for electrodes, e.g. ignition tips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips

Definitions

  • the present invention relates to a torch assembly, and more specifically, in a new form that accurately confirms that the supply of the wire is stopped during automatic welding, and prevents welding defects caused by the interruption of the supply of the wire in advance. According to the push-pull supply type torch system.
  • a welding torch assembly is a tool used for various metal works such as melting a work object at a high temperature, cutting, surface treatment, welding, and the like.
  • the welding wire is made to be supplied to the welding torch assembly at a constant speed by a separate feeding device.
  • a roller for accurately guiding a welding wire is provided in the corresponding welding torch assembly.
  • the structure for supplying the welding wire according to the prior art described above is simply such that only the welding wire can be provided at a constant speed, and a supply failure occurs during the supply of the welding wire, or a supply failure due to the cutting of the welding wire When this occurs, there is a problem in that it is not possible to deal with it.
  • the present invention has been devised to solve various problems according to the prior art described above, and an object of the present invention is to accurately confirm that the supply of the wire is stopped while automatic welding is in progress, and welding defects due to the interruption of the supply of the wire It is to provide a push-pull supply type torch system according to a new form that can prevent this in advance and achieve the miniaturization of the product.
  • a body part is formed, and a mounting part for installation in other equipment is provided in the rear side, and the body bundle is configured such that the torch is coupled to the front side. ; a supply guide for guiding the supply of the welding wire passing through the body bundle while being located in the body bundle; a sensing unit for detecting whether the wire supplied to the torch is cut by the supply guide unit; and a control unit for controlling the supply guide unit according to the sensing information of the sensing unit.
  • a guide roller which is respectively installed to be rotatably rolling on at least one side of both sides of the part through which the welding wire passes, and the guide roller while being provided on the bottom surface of the body bundle and being axially coupled with the guide roller It is characterized in that it is configured to include a motor for driving a roller that provides a driving force so that the forcible rotation.
  • the guide roller is spaced from the welding wire, or characterized in that it is configured to be close.
  • the sensing unit is characterized in that it comprises a light emitting unit and a light receiving unit positioned to face each other on both sides of the portion through which the welding wire passed through the supply guide.
  • the control unit determines the remaining length of the welding wire currently being welded from the cut position, and then forms a maximum welding pattern that can be performed with the confirmed remaining length. It is characterized in that it is programmed to weld up to a welding pattern as much as the calculated possible quantity by calculating the possible quantity.
  • the push-pull supply type torch system of the present invention confirms whether the welding wire is disconnected in real time and controls accordingly, so that the welding continues even though the supply of the welding wire is not made. It has the effect of being able to prevent problems in advance.
  • the push-pull supply type torch system of the present invention calculates the number (or number of times) of the maximum welding pattern that can be performed with the remaining length of the welding wire when the breakage of the welding wire 10 is confirmed, and as much as the corresponding quantity. By allowing only the welding pattern to be additionally performed, it is possible to prevent wastage of the welding wire while preventing defects in the welding area.
  • the push-pull supply type torch system of the present invention is provided so that the roller driving motor providing driving force to supply the welding wire is installed in the horizontal direction on the bottom surface of the body bundle.
  • the size of the overall torch assembly including the supply structure It has the effect that it can be miniaturized and welding in more various places is possible.
  • FIG. 1 is an exploded perspective view illustrating a push-pull feeding type torch system according to an embodiment of the present invention
  • FIG. 2 is a push-pull supply type torch system according to an embodiment of the present invention is a combined perspective view to explain the system
  • FIG. 3 is a front view showing a push-pull feeding type torch system according to an embodiment of the present invention.
  • FIG. 4 is a plan view showing a push-pull feeding type torch system according to an embodiment of the present invention.
  • FIG. 5 is a perspective view showing the bottom side structure of a push-pull feeding type torch system according to an embodiment of the present invention
  • Figure 6 is a push-pull supply type torch system according to an embodiment of the present invention, an enlarged view showing the main part in a plan view to explain the state of guiding the welding wire by two guide rollers forming the supply guide part of the torch system
  • Figure 7 is an enlarged view of the main part showing a state viewed from the front in order to explain a state for detecting a break in the welding wire by the detection unit of the push-pull supply type torch system according to an embodiment of the present invention
  • FIGS. 1 to 7 a preferred embodiment of the push-pull feeding type torch system of the present invention will be described with reference to the accompanying FIGS. 1 to 7 .
  • FIG. 1 is an exploded perspective view illustrating a push-pull supply type torch system according to an embodiment of the present invention
  • FIG. 2 is a push-pull supply type torch system according to an embodiment of the present invention.
  • Figure 3 is a push-pull feeding type torch system according to an embodiment of the present invention is a front view shown to explain the system
  • Figure 4 is a push-pull feeding type torch system according to an embodiment of the present invention To explain This is the flat view shown.
  • the push-pull supply type torch system is largely composed of a body bundle 100 , a supply guide unit 200 , a detection unit 300 , and a control unit 400 .
  • the sensing unit 300 detects the break of the welding wire 10 guided by the supply guide 200
  • the control unit 400 detects the welding detected by the sensing unit 300 . Based on whether the wire 10 is broken and the length of the remaining welding wire 10, it is characterized in that it is made to determine whether to continue or stop the welding operation.
  • the body bundle 100 is a portion that forms the external body of the push-pull supply type torch system according to an embodiment of the present invention.
  • Such a body bundle 100 is made so that the welding wire 10 can pass along the axial direction, and a mounting part 110 for installation in other equipment is provided in the rear side, and a torch 120 is provided in the front side. made to be combined.
  • other equipment on which the mounting unit 110 is installed may be a robot arm or the like.
  • the installation end 130 is formed in a stepped portion as the upper surface central portion of the body bundle 100 .
  • the installation end 130 has a supply guide 200 for guiding the supply of the welding wire 10 passing through the corresponding site is made to be installed.
  • the portion where the installation end 130 is formed of the body bundle 100 is formed to be opened up and down, and the mounting end 140 is additionally formed while extending downward from this open portion to provide a mounting space therein. .
  • a reduction gear (not shown) for decelerating and transmitting the driving force of the roller driving motor 230 constituting the supply guide 200 to be described later is mounted on the mounting end 140 .
  • the supply guide 200 is a portion provided to guide the supply of the welding wire 10 passing through the body bundle (100).
  • Such a supply guide 200 is positioned at the installation end 130 of the body bundle 100 and is made to guide the supply of the welding wire 10 passing through the corresponding portion, the installation block 210 and the guide roller (221, 222) and a roller driving motor 230 is made.
  • the installation block 210 is a portion provided for installation of the guide rollers 221 and 222 and a portion for guiding the welding wire 10 to pass through the guide rollers 221 and 222 accurately.
  • the installation block 210 is coupled and fixed to the installation end 130 of the body bundle 100 , and coupling ends 211 for coupling to the body bundle 100 are formed to protrude forward and rearward, respectively. .
  • the guide rollers 221 and 222 are installed on the upper surface of the installation block 210 to be rotatably rolled and installed on at least one side of both sides of the portion through which the welding wire 10 passes. At this time, the guide rollers 221 and 222 are coupled to the rotating shaft 240 and rotated together with the rotating shaft 240 , and the rotating shaft 240 passes through the installation block 210 to open the installation end 130 . It is made to be connected to the reduction gear in the mounting end 140 after passing through the site.
  • the roller driving motor 230 is horizontally coupled to the front surface of the mounting end 140 extending to the bottom of the body bundle 100 and is configured to transmit power to the reduction gear provided in the mounting end 140 .
  • the supply guide 200 is not limited to simply performing a role of guiding the supply of the welding wire 10 , and the welding wire 10 is forcibly supplied toward the torch 120 . so that it can perform its role.
  • the guide rollers 221 and 222 are provided in two so as to be positioned on both sides of the welding wire 10, respectively, and any one of the two guide rollers 221 and 222 (fixed-side guide roller) 221 is the In addition to being coupled to the rotation shaft 240 , the other guide roller (variable-side guide roller) 222 is spaced apart from the welding wire 10 or further suggests that it is configured to be in contact.
  • the welding wire 10 can be accurately adhered to the two guide rollers 221 and 222 of the supply guide 200, and each guide roller 221, 222. This is to ensure that maintenance work such as replacement of This is as shown in the attached FIG. 6 .
  • FIG. 6 attached thereto in order to show the installation state of the two guide rollers 221 and 222, the illustration of other surrounding components is omitted.
  • the two guide rollers 221 and 222 may be installed so as not to be placed at a location coincident with each other, but to be placed at a position staggered forward and backward.
  • the movable structure of this variable-side guide roller 222 is to install the variable-side guide roller 222 to the rotating piece 251, and the rotating piece 251 is rotatably coupled to the installation end 130,
  • the installation block 210 is made by providing a restraining pin 252 for restraining the pivoting piece 251 .
  • the constraining pin 252 is configured to enable vertical rotation and elastic deformation in the longitudinal direction, so that when the rotating piece 251 is placed in the constraint position, the constraining pin is inserted into the constraining groove 251a of the rotating piece 251. (252) is seated so that it can be restrained.
  • the sensing unit 300 is configured to detect whether the welding wire 10 guided to the torch 120 by the supply guide 200 is cut.
  • the sensing unit 300 includes a light emitting unit 310 and a light receiving unit 320 positioned to face each other on both sides of a portion through which the welding wire 10 passing through the supply guide 200 passes.
  • Attached Figure 7 is an enlarged view of the main part showing a state viewed from the front in order to explain the state for detecting the break of the welding wire by the sensing unit of the push-pull feeding type torch system according to an embodiment of the present invention, each guide roller It is a diagram showing the structure related to the supply guide 200, such as (221, 222) omitted.
  • control unit 400 is a controller configured to control the supply guide 200 according to the sensing information of the sensing unit 300 .
  • Such a control unit 400 may be a main controller for controlling the operation of the entire welding apparatus having the corresponding welding torch assembly, and receives a control signal from the main controller to control the operation of the roller driving motor 230 . It can also be a secondary controller.
  • control unit 400 is the main controller as an example, and in particular, when the detection unit 300 detects that the welding wire 10 is broken, the welding wire currently welding is in progress from the disconnected position. After checking the residual length of (10), the number of possible welding patterns that can be performed with the checked residual length is calculated, and the program is programmed to weld up to the calculated number of welding patterns.
  • control unit 400 prevents defects such as excessive welding or insufficient welding of the welding interruption part caused by performing welding again from the welding interruption part.
  • a push-pull supply type torch system according to an embodiment of the present invention is connected to the welding wire 10 .
  • Such a welding wire 10 is connected until exposed to the outside through the torch 120 via the supply guide 200 of the body bundle 100, at this time the variable-side guide roller 222 is a welding wire ( 10) by manipulating the rotating piece 251 so as to be spaced apart from the welding wire 10 so that the connection of the welding wire 10 can be made accurately.
  • variable-side guide roller 222 is positioned adjacent to the fixed-side guide roller 221 through the rotation operation of the rotating piece 251, thereby The welding wire 10 is engaged between the fixed-side guide roller 221 and the variable-side guide roller 222 .
  • the roller driving motor 230 is driven to rotate the fixed-side guide roller 221 , thereby rotating the fixed-side guide roller 221 . ) and the forced supply of the welding wire 10 constrained between the variable-side guide roller 222 is made.
  • the disconnection of the welding wire 10 is detected by the detection unit 300 , and the detection signal is transmitted to the control unit 400 . is transmitted to
  • control unit 400 checks the remaining length of the welding wire 10 currently being welded from the cut position and calculates the number of possible formations of the maximum welding pattern that can be performed with the confirmed remaining length. .
  • control unit 400 stops the welding operation after controlling the welding to be performed only up to the calculated number of possible welding patterns. That is, even if additional welding can be performed, further welding is not performed unless the additional welding is sufficient to complete the corresponding welding pattern.
  • the push-pull supply type torch system of the present invention checks whether the welding wire 10 is broken in real time, and allows the supply of the welding wire 10 to be performed by controlling accordingly. It is possible to prevent in advance the problem of continuously performing welding despite the fact that the welding is not performed.
  • the push-pull feeding torch system of the present invention calculates the number (or number of times) of the maximum welding pattern that can be performed with the welding wire 10 of the remaining length when the welding wire 10 is broken. By allowing only a corresponding number of welding patterns to be additionally performed, it is possible to prevent wastage of the welding wire 10 and to prevent defects in the welding portion.
  • the push-pull feeding torch system of the present invention is provided so that the roller driving motor 230 providing a driving force to supply the welding wire 10 is installed on the bottom surface of the body bundle 10 in the horizontal direction.
  • the roller driving motor 230 providing a driving force to supply the welding wire 10 is installed on the bottom surface of the body bundle 10 in the horizontal direction.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

La présente invention concerne un système de torche de type à apport par poussée-traction comprenant un faisceau de corps, une unité de guidage d'apport, une unité de détection et une unité de commande. En particulier, l'unité de détection détecte le détachement d'un fil de soudage guidé par l'unité de guidage d'apport et l'unité de commande est conçue pour déterminer s'il faut poursuivre ou interrompre le soudage selon que l'unité de détection a établi que le fil de soudage est détaché. Ainsi, il peut être déterminé précisément si l'apport en fil est interrompu au cours d'un soudage automatique et des défauts de soudage découlant de telles interruptions d'apport en fil peuvent être empêchés.
PCT/KR2020/000466 2020-01-10 2020-01-10 Système de torche de type à apport par poussée-traction WO2021141167A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/000466 WO2021141167A1 (fr) 2020-01-10 2020-01-10 Système de torche de type à apport par poussée-traction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/000466 WO2021141167A1 (fr) 2020-01-10 2020-01-10 Système de torche de type à apport par poussée-traction

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WO2021141167A1 true WO2021141167A1 (fr) 2021-07-15

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010075954A (ja) * 2008-09-25 2010-04-08 Daihen Corp 溶接ロボット
KR20150011186A (ko) * 2013-07-22 2015-01-30 엘지전자 주식회사 솔더링 와이어 공급 장치
KR101595282B1 (ko) * 2014-11-13 2016-02-19 대우조선해양 주식회사 용접 와이어 교체 장치
JP2017024043A (ja) * 2015-07-22 2017-02-02 株式会社ダイヘン 溶接システムおよび溶接トーチ
KR102106641B1 (ko) * 2018-11-16 2020-05-12 주식회사 로봇밸리 푸시-풀 송급형 토치시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010075954A (ja) * 2008-09-25 2010-04-08 Daihen Corp 溶接ロボット
KR20150011186A (ko) * 2013-07-22 2015-01-30 엘지전자 주식회사 솔더링 와이어 공급 장치
KR101595282B1 (ko) * 2014-11-13 2016-02-19 대우조선해양 주식회사 용접 와이어 교체 장치
JP2017024043A (ja) * 2015-07-22 2017-02-02 株式会社ダイヘン 溶接システムおよび溶接トーチ
KR102106641B1 (ko) * 2018-11-16 2020-05-12 주식회사 로봇밸리 푸시-풀 송급형 토치시스템

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